newtx/hardware/hardware.cpp

#include "hardware.h"

#include "./cis/FpgaComm.h"
#include "./cis/gvideoisp1.h"
#include "./motor/motorboard.h"
#include <huagao/hgscanner_error.h>
#include <sane/sane_ex.h>

/////////////////////////////////////////////////////////////////////////////////////////////////////////
// scanner_hw
static std::string device_opt_json[] = {
	"{\"mode\":{\"cat\":\"none\",\"group\":\"CIS\",\"title\":\"\\u989c\\u8272\\u6a21\\u5f0f\",\"desc\":\"\\u9009\\u62e9\\u955c\\u5934\\u8272\\u5f69\\u5de5\\u4f5c\\u6a21\\u5f0f\",\"type\":\"string\",\"fix-id\":34819,\"ui-pos\":10,\"auth\":0,\"size\":12,\"cur\":\"\\u5f69\\u8272\",\"default\":\"\\u5f69\\u8272\",\"range\":[\"\\u5f69\\u8272\",\"\\u7070\\u5ea6\"]},\"resolution\":{\"cat\":\"none\",\"group\":\"CIS\",\"title\":\"\\u5206\\u8fa8\\u7387\",\"desc\":\"\\u8bbe\\u7f6e\\u955c\\u5934\\u5de5\\u4f5c\\u7684\\u5206\\u8fa8\\u7387\",\"type\":\"int\",\"fix-id\":34840,\"ui-pos\":11,\"auth\":0,\"size\":4,\"cur\":300,\"default\":300,\"range\":[200,300]},\"is-wait-scan\":{\"cat\":\"base\",\"group\":\"feeder\",\"title\":\"\\u5f85\\u7eb8\\u626b\\u63cf\",\"desc\":\"\\u542f\\u7528\\u540e\\uff0c\\u6587\\u7a3f\\u653e\\u5165\\u626b\\u63cf\\u4eea\\u65f6\\u5c06\\u81ea\\u52a8\\u542f\\u52a8\\u626b\\u63cf\",\"type\":\"bool\",\"fix-id\":34873,\"ui-pos\":12,\"auth\":0,\"size\":4,\"cur\":false,\"default\":false},\"wait-scan-exit\":{\"cat\":\"base\",\"group\":\"feeder\",\"title\":\"\\u5f85\\u7eb8\\u626b\\u63cf\\u9000\\u51fa\\u65f6\\u95f4\",\"desc\":\"\\u8bbe\\u7f6e\\u7ed3\\u675f\\u5f85\\u7eb8\\u626b\\u63cf\\u7684\\u65f6\\u95f4\",\"type\":\"string\",\"fix-id\":34920,\"ui-pos\":13,\"auth\":0,\"size\":16,\"cur\":\"60s\",\"default\":\"60s\",\"range\":[\"15s\",\"30s\",\"60s\",\"2min\",\"4min\",\"8min\"],\"depend\":\"is-wait-scan==true\"},\"scan-mode\":{\"cat\":\"base\",\"group\":\"feeder\",\"title\":\"\\u626b\\u63cf\\u5f20\\u6570\",\"desc\":\"\\u9009\\u62e9\\u6307\\u5b9a\\u6570\\u91cf\\u626b\\u63cf\\u6216\\u8fde\\u7eed\\u626b\\u63cf\",\"type\":\"string\",\"fix-id\":34862,\"ui-pos\":15,\"auth\":0,\"size\":24,\"cur\":\"\\u8fde\\u7eed\\u626b\\u63cf\",\"default\":\"\\u8fde\\u7eed\\u626b\\u63cf\",\"range\":[\"\\u8fde\\u7eed\\u626b\\u63cf\",\"\\u626b\\u63cf\\u6307\\u5b9a\\u5f20\\u6570\"],\"depend\":\"is-wait-scan==false\"},\"scan-count\":{\"cat\":\"base\",\"group\":\"feeder\",\"title\":\" \\u626b\\u63cf\\u6570\\u91cf\",\"desc\":\"\\u626b\\u63cf\\u6307\\u5b9a\\u6570\\u91cf\",\"type\":\"int\",\"fix-id\":34863,\"ui-pos\":16,\"auth\":0,\"size\":4,\"cur\":-1,\"default\":-1,\"depend\":\"scan-mode.enabled&&scan-mode==\\u626b\\u63cf\\u6307\\u5b9a\\u5f20\\u6570\"},\"is-auto-strength\":{\"cat\":\"base\",\"group\":\"feeder\",\"title\":\"\\u81ea\\u52a8\\u5206\\u7eb8\\u5f3a\\u5ea6\",\"desc\":\"\\u626b\\u63cf\\u4eea\\u81ea\\u52a8\\u4fee\\u6b63\\u5206\\u7eb8\\u529b\\u5ea6\",\"type\":\"bool\",\"fix-id\":34876,\"ui-pos\":27,\"auth\":0,\"size\":4,\"cur\":false,\"default\":false},\"feed-strength-value\":{\"cat\":\"base\",\"group\":\"feeder\",\"title\":\"   \\u8fdb\\u7eb8\\u5931\\u8d25\\u7387\",\"desc\":\"\\u9ad8\\u4e8e\\u8be5\\u503c\\u65f6\\u626b\\u63cf\\u4eea\\u5c06\\u8c03\\u6574\\u5206\\u7eb8\\u529b\\u5ea6\",\"type\":\"float\",\"fix-id\":34877,\"ui-pos\":28,\"auth\":0,\"size\":8,\"cur\":0.000000,\"default\":0.000000,\"range\":{\"min\":0.100000,\"max\":0.900000,\"step\":0.080000},\"depend\":\"is-auto-strength==true\"},\"feed-strength\":{\"cat\":\"base\",\"group\":\"feeder\",\"title\":\"\\u5206\\u7eb8\\u5f3a\\u5ea6\",\"desc\":\"\\u8bbe\\u7f6e\\u626b\\u63cf\\u4eea\\u7684\\u5206\\u7eb8\\u529b\\u5ea6\",\"type\":\"string\",\"fix-id\":34874,\"ui-pos\":30,\"auth\":0,\"size\":12,\"cur\":\"\\u4e00\\u822c\",\"default\":\"\\u4e00\\u822c\",\"range\":[\"\\u5f31\",\"\\u4e00\\u822c\",\"\\u5f3a\"],\"depend\":\"is-auto-strength!=true\"},\"time-to-sleep\":{\"cat\":\"base\",\"group\":\"feeder\",\"title\":\"\\u4f11\\u7720\\u65f6\\u95f4\",\"desc\":\"\\u8bbe\\u7f6e\\u626b\\u63cf\\u4eea\\u7684\\u4f11\\u7720\\u65f6\\u95f4\",\"type\":\"string\",\"fix-id\":34875,\"ui-pos\":33,\"auth\":0,\"size\":16,\"cur\":\"\\u4e0d\\u4f11\\u7720\",\"default\":\"\\u4e0d\\u4f11\\u7720\",\"range\":[\"\\u4e0d\\u4f11\\u7720\",\"\\u4e94\\u5206\\u949f\",\"\\u5341\\u5206\\u949f\",\"\\u534a\\u5c0f\\u65f6\",\"\\u4e00\\u5c0f\\u65f6\",\"\\u4e24\\u5c0f\\u65f6\",\"\\u56db\\u5c0f\\u65f6\"]},\"baud\":{\"cat\":\"none\",\"group\":\"CIS\",\"title\":\"\\u6ce2\\u7279\\u7387\",\"desc\":\"CIS\\u63a7\\u5236\\u901a\\u4fe1\\u901f\\u7387\",\"type
	"\",\"title\":\"\\u6b6a\\u659c\\u5bb9\\u5fcd\\u5ea6\",\"desc\":\"\\u503c\\u8d8a\\u5c0f\\uff0c\\u80fd\\u5bb9\\u5fcd\\u5f97\\u9001\\u5165\\u6587\\u7a3f\\u6b6a\\u659c\\u89d2\\u5ea6\\u8d8a\\u5c0f\",\"type\":\"int\",\"fix-id\":34869,\"ui-pos\":23,\"auth\":0,\"size\":4,\"cur\":3,\"default\":3,\"range\":{\"min\":1,\"max\":7,\"step\":1},\"depend\":\"is-check-askew==true\"}}"
};


/////////////////////////////////////////////////////////////////////////////////////////////////////////
// scanner_hw
scanner_hw::scanner_hw()
{
    set_where("hardware");
    init();
}
scanner_hw::~scanner_hw()
{
    close();
}

void scanner_hw::init(void)
{
    std::string text("");

    for(auto& v: device_opt_json)
        text += v;

    set_opt_json_text(&text[0]);

#define OPT_HANDLER(name)       \
    auto name = [this](void* value) -> void

    auto a = [this](void* value) -> void
    {
        auto_scan_ = *(bool*)value;
    };
    auto e = [this](void* value) -> void
    {
        if(strcmp((char*)value, "15s") == 0)
            time_to_exit_auto_scan_ = 15;
        else if(strcmp((char*)value, "30s") == 0)
            time_to_exit_auto_scan_ = 30;
        else if(strcmp((char*)value, "2min") == 0)
            time_to_exit_auto_scan_ = 120;
        else if(strcmp((char*)value, "4min") == 0)
            time_to_exit_auto_scan_ = 240;
        else if(strcmp((char*)value, "8min") == 0)
            time_to_exit_auto_scan_ = 480;
        else
            time_to_exit_auto_scan_ = 60;
    };

    auto m = [this](void* value) -> void
    {
        if(strcmp((char*)value, "\347\201\260\345\272\246") == 0)
            mode_ = (char*)value;
        else
            mode_ = "\345\275\251\350\211\262";
    };
    auto r = [this](void* value) -> void
    {
        if(*(int*)value <= 200)
            dpi_ = 200;
        else
            dpi_ = 300;
    };
    auto b = [this](void* value) -> void
    {
        baud_ = *(int*)value;
    };
    auto d = [this](void* value) -> void
    {
        delay_ = *(int*)value;
    };
    auto f = [this](void* value) -> void
    {
        frame_h_ = *(int*)value;
    };
    auto s = [this](void* value) -> void
    {
        sample_ = *(int*)value;
    };

    auto efb = [this](void* value) -> void
    {
        exposure_[SIDE_FRONT][COLOR_IND_BLUE] = *(int*)value;
    };
    auto efg = [this](void* value) -> void
    {
        exposure_[SIDE_FRONT][COLOR_IND_GREEN] = *(int*)value;
    };
    auto efr = [this](void* value) -> void
    {
        exposure_[SIDE_FRONT][COLOR_IND_RED] = *(int*)value;
    };
    auto ebb = [this](void* value) -> void
    {
        exposure_[SIDE_BACK][COLOR_IND_BLUE] = *(int*)value;
    };
    auto ebg = [this](void* value) -> void
    {
        exposure_[SIDE_BACK][COLOR_IND_GREEN] = *(int*)value;
    };
    auto ebr = [this](void* value) -> void
    {
        exposure_[SIDE_BACK][COLOR_IND_RED] = *(int*)value;
    };

    auto gf = [this](void* value) -> void
    {
        gain_[SIDE_FRONT] = *(int*)value;
    };
    auto gb = [this](void* value) -> void
    {
        gain_[SIDE_BACK] = *(int*)value;
    };

    auto of = [this](void* value) -> void
    {
        off_[SIDE_FRONT] = *(int*)value;
    };
    auto ob = [this](void* value) -> void
    {
        off_[SIDE_BACK] = *(int*)value;
    };

    CLEAN_ARRAY(exposure_);
    CLEAN_ARRAY(gain_);
    CLEAN_ARRAY(off_);

    opt_handler_[SANE_FULL_NAME(WAIT_TO_SCAN)] = a;
    opt_handler_[SANE_FULL_NAME(WAIT_SCAN_EXIT)] = e;

    opt_handler_[SANE_FULL_NAME(COLOR_MODE)] = m;
    opt_handler_[SANE_FULL_NAME(RESOLUTION)] = r;
    opt_handler_[SANE_FULL_NAME(CIS_BAUD)] = b;
    opt_handler_[SANE_FULL_NAME(CIS_DELAY)] = d;
    opt_handler_[SANE_FULL_NAME(CIS_FRAME_H)] = f;
    opt_handler_[SANE_FULL_NAME(CIS_SAMPLE)] = s;

    opt_handler_[SANE_FULL_NAME(CIS_EXPO_FB)] = efb;
    opt_handler_[SANE_FULL_NAME(CIS_EXPO_FG)] = efg;
    opt_handler_[SANE_FULL_NAME(CIS_EXPO_FR)] = efr;
    opt_handler_[SANE_FULL_NAME(CIS_EXPO_BB)] = ebb;
    opt_handler_[SANE_FULL_NAME(CIS_EXPO_BG)] = ebg;
    opt_handler_[SANE_FULL_NAME(CIS_EXPO_BR)] = ebr;

    opt_handler_[SANE_FULL_NAME(CIS_GAIN_FRONT)] = gf;
    opt_handler_[SANE_FULL_NAME(CIS_GAIN_BACK)] = gb;

    opt_handler_[SANE_FULL_NAME(CIS_OFFSET_FRONT)] = of;
    opt_handler_[SANE_FULL_NAME(CIS_OFFSET_BACK)] = ob;


    auto staple = [this](void* value) -> void
    {
        staple_chk_ = *(bool*)value;
    };
    auto screw = [this](void* value) -> void
    {
        screw_chk_ = *(bool*)value;
    };
    auto screwl = [this](void* value) -> void
    {
        screw_chk_level_ = *(int*)value;
    };
    auto dbchk = [this](void* value) -> void
    {
        double_chk_ = strcmp((char*)value, "\347\246\201\347\224\250") != 0;
    };
    auto motsp = [this](void* value) -> void
    {
        int speed = *(int*)value;
        if(family_ == "G200")
        {
            speed -= 100;       // 100 110 120 130
        }
        else
        {
            speed -= 70;        // 70 80 90 100
        }
        switch(speed)
        {
        case 10:
            motor_speed_ = SPEED_PPM_BASE_10;
            break;
        case 20:
            motor_speed_ = SPEED_PPM_BASE_20;
            break;
        case 30:
            motor_speed_ = SPEED_PPM_BASE_30;
            break;
        default:
            motor_speed_ = SPEED_PPM_BASE;
            break;
        }
    };
    auto fm = [this](void* value) -> void
    {
        family_ = (char*)value;
        utils::to_log(LOG_LEVEL_DEBUG, "Device family set as: %s\n", family_.c_str());
    };
    OPT_HANDLER(cntm)
    {
        
    };
    OPT_HANDLER(cnt)
    {
        scan_count_ = *(int*)value;
    };
    OPT_HANDLER(afs)
    {

    };
    OPT_HANDLER(ff)
    {

    };
    OPT_HANDLER(fs)
    {

    };
    OPT_HANDLER(slp)
    {

    };

    opt_handler_[SANE_FULL_NAME(IS_CHECK_STAPLE)] = staple;
    opt_handler_[SANE_FULL_NAME(IS_CHECK_ASKEW)] = screw;
    opt_handler_[SANE_FULL_NAME(ASKEW_RANGE)] = screwl;
    opt_handler_[SANE_FULL_NAME(DOUBLE_CHECK)] = dbchk;
    opt_handler_[SANE_FULL_NAME(MOTOR_SPEED)] = motsp;
    opt_handler_[SANE_FULL_NAME(DEVICE_MODEL)] = fm;
    opt_handler_[SANE_FULL_NAME(SCAN_MODE)] = cntm;
    opt_handler_[SANE_FULL_NAME(SCAN_COUNT)] = cnt;
    opt_handler_[SANE_FULL_NAME(IS_AUTO_FEED_STRENGTH)] = afs;
    opt_handler_[SANE_FULL_NAME(FEED_STRENGTH_VALUE)] = ff;
    opt_handler_[SANE_FULL_NAME(FEED_STRENGTH)] = fs;
    opt_handler_[SANE_FULL_NAME(TIME_TO_SLEEP)] = slp;
}
void scanner_hw::thread_image_capture(void)
{
    PACKIMAGE       img;
    safe_fifo<int>  avail_mem("v4l2-mem");
    int             used_v4l2_mem = 0;
    auto put_v4l2_mem = [&](BEFORE_DESTROY_PARAM) -> BEFORE_DESTROY_RET
    {
        int ind = (int)(long)param;

        mem->detach(nullptr);
        avail_mem.save(ind);
    };

    utils::to_log(LOG_LEVEL_DEBUG, "scanning thread working ...\n");
    memset(&img, 0, sizeof(img));
    while(1)    // auto scan cycle ...
    {
        size_t  size = 0;
        int     ind = -1;
        void*   frame = camera_->read_frame(1000, size, ind);

        // scanning ONE turn ...
        while(frame)
        {
            dyn_mem_shared_ptr mem = new dyn_mem_shared(frame, size, put_v4l2_mem, (void*)ind);

            used_v4l2_mem++;
            img.pos.paper_ind++;
            img.pos.status = IMG_STATUS_OK;
            img_handler_(mem, true, &img);

            if(img.pos.paper_ind == scan_count_ || is_scan_fatal())
                break;

            // retrieve V4L2 memory ...
            retrieve_v4l2_mem(&avail_mem, &used_v4l2_mem);
            if(used_v4l2_mem >= camera_->get_mem_count())
            {
                stop_scan();
                utils::to_log(LOG_LEVEL_FATAL, "Scanning stopped for that V4L2 is out of memory!\n");
                break;
            }

            motor_->pick_paper();
            frame = camera_->read_frame(1000, size, ind);
        }

        // retrieve v4l2-mem ...
        while(avail_mem.take(ind, false))
        {
            used_v4l2_mem--;
            camera_->add_v4l2_memory(ind);
        }

        if(!auto_scan_)
            break;

        // wait paper ...
    }

    int times = 0;
    while(used_v4l2_mem)
    {
        if(times++ == 0)
            utils::to_log(LOG_LEVEL_DEBUG, "Wait to retrieve %d V4L2 memory(s) ...\n", used_v4l2_mem);
        else if(times >= 1000)
        {
            utils::to_log(LOG_LEVEL_FATAL, "Wait %d times, but %d V4L2 memory(s) has not returned yet!\n", times, used_v4l2_mem);
            break;
        }
        retrieve_v4l2_mem(&avail_mem, &used_v4l2_mem);
        std::this_thread::sleep_for(std::chrono::milliseconds(5));
    }
    utils::to_log(LOG_LEVEL_DEBUG, "scanning thread exited.\n");
}
bool scanner_hw::is_scan_fatal(void)
{
    return false;
}
void scanner_hw::retrieve_v4l2_mem(safe_fifo<int>* mem, int* used)
{
    int u = *used,
        ind = 0;

    while(u >= camera_->get_mem_count())
    {
        if(mem->size())
        {
            if(ind)
                utils::to_log(LOG_LEVEL_WARNING, "V4L2 memory returned.\n");
            break;
        }
        if(ind == 0)
            utils::to_log(LOG_LEVEL_WARNING, "V4L2 is out of memory, wait image processor return ...\n");

        if(ind++ > 1000)    // 3 seconds ...
            break;
        std::this_thread::sleep_for(std::chrono::milliseconds(3));
    }
    while(mem->take(ind, false))
    {
        u--;
        camera_->add_v4l2_memory(ind);
    }
    *used = u;
}

// sane_opt_provider
char* scanner_hw::get_value(const char* name, void* value, size_t* size, int* err)
{
    char    *ret = nullptr;

    if(err)
        *err = SCANNER_ERR_OK;

    if(strcmp(name, SANE_FULL_NAME(PAPER_ON)) == 0)
    {
        ret = (char*)malloc(sizeof(int));
        *(int*)ret = 0;
        *(bool*)ret = paper_on_;
        if(size)
            *size = sizeof(bool);
    }
    else if(err)
        *err = SCANNER_ERR_DEVICE_NOT_FOUND;

    return ret;
}
int scanner_hw::set_value(const char* name, void* val)
{
    if(scanning_)   // working, no set
    {
        return SCANNER_ERR_DEVICE_BUSY;
    }

    if(opt_handler_.count(name))
    {
        opt_handler_[name](val);

        return 0;
    }
    else
    {
        return SCANNER_ERR_DEVICE_NOT_SUPPORT;
    }
}

// operation ...
int scanner_hw::open(std::function<IMAGE_HANDLER_PROTO> image_handler)
{
    this->close();

    if(!image_handler)
        return SCANNER_ERR_INVALID_PARAMETER;

    img_handler_ = image_handler;
    img_controller_.reset(new FpgaComm(baud_));

    img_controller_->setColorMode(mode_ == "\345\275\251\350\211\262" ? COLOR_MODE : GRAY_MODE);
    img_controller_->setDpi(dpi_ == 200 ? DPI_200 : DPI_300);
    img_controller_->setFrameHeight(frame_h_);
    img_controller_->setDelayTime(delay_);
    img_controller_->setSample(sample_);

    void(FpgaComm::* exposure[])(int) = {&FpgaComm::setAExposureB, &FpgaComm::setAExposureG
        , &FpgaComm::setAExposureR, &FpgaComm::setBExposureB, &FpgaComm::setBExposureG, &FpgaComm::setBExposureR};
    for(int i = 0; i < SIDE_COUNT; ++i)
    {
        for(int j = 0; j < COLOR_IND_COUNT; ++j)
            (img_controller_.get()->*exposure[i * SIDE_COUNT + j])(exposure_[i][j]);
    }

    for(int i = 0; i < FpgaComm::CIS_SECTOR_COUNT; ++i)
        img_controller_->setAGain(i, gain_[SIDE_FRONT]);
    for(int i = 0; i < FpgaComm::CIS_SECTOR_COUNT; ++i)
        img_controller_->setBGain(i, gain_[SIDE_BACK]);

    for(int i = 0; i < FpgaComm::CIS_SECTOR_COUNT; ++i)
        img_controller_->setAOffset(i, off_[SIDE_FRONT]);
    for(int i = 0; i < FpgaComm::CIS_SECTOR_COUNT; ++i)
        img_controller_->setBOffset(i, off_[SIDE_BACK]);

    camera_.reset(new GVideoISP1());
    camera_->open(0, 0);

    motor_.reset(new MotorBoard());
    motor_->set_double_inpect(double_chk_);
    motor_->set_staple_inpect(staple_chk_);
    motor_->set_screw_inpect(screw_chk_);
    motor_->set_screw_level(screw_chk_level_);
    motor_->set_speed_mode(motor_speed_);
    motor_->set_auto_paper(auto_scan_);

    unsigned int val = 0;
    if(motor_->read(PORT_CONFIG, val))
        utils::to_log(LOG_LEVEL_DEBUG, "MotorBoard config : %p\n", val);
    else
        utils::to_log(LOG_LEVEL_FATAL, "Get motor-board config failed.\n");
    if(motor_->read(PORT_STATUS, val))
        utils::to_log(LOG_LEVEL_DEBUG, "MotorBoard status : %p\n", val);
    else
        utils::to_log(LOG_LEVEL_FATAL, "Get motor-board status failed.\n");
    if(motor_->read(PORT_MODE, val))
        utils::to_log(LOG_LEVEL_DEBUG, "MotorBoard mode   : %p\n", val);
    else
        utils::to_log(LOG_LEVEL_FATAL, "Get motor-board mode failed.\n");
    if(motor_->read(PORT_VERSION, val))
        utils::to_log(LOG_LEVEL_DEBUG, "MotorBoard version: %p\n", val);
    else
        utils::to_log(LOG_LEVEL_FATAL, "Get motor-board version failed.\n");
    if(motor_->read(PORT_CONFIG_EX, val))
        utils::to_log(LOG_LEVEL_DEBUG, "MotorBoard confige: %p\n", val);
    else
        utils::to_log(LOG_LEVEL_FATAL, "Get motor-board confige failed.\n");

    return SCANNER_ERR_OK;
}
int scanner_hw::start_scan(void)
{
    unsigned int val = 0;

    if(!camera_.get() || !motor_.get() || !img_controller_.get())
        return DEV_ERR(NOT_READY);

    motor_->clear_error();
    if(!motor_->read(PORT_STATUS, val))
        return DEV_ERR(GET_STATUS_FAILED);

    utils::to_log(LOG_LEVEL_DEBUG, "start scan: status = 0x%08x.\n", val);
    if (((SMBSTATUS*)&val)->open_machine)   // 0x700fe
        return DEV_ERR(COVER_OPENNED);

    if(!motor_->read(PORT_MODE, val))
        return DEV_ERR(GET_STATUS_FAILED);

    utils::to_log(LOG_LEVEL_DEBUG, "start scan: mode-status = 0x%08x.\n", val);
    if(val & 0x1c0000)
        return DEV_ERR(PAPER_JAMMED);
        
    if(((SMBMODE*)&val)->feeding_paper_ready == 0 && !auto_scan_)
        return DEV_ERR(NO_PAPER);

    camera_->start();

    return SCANNER_ERR_OK;
}
int scanner_hw::stop_scan(void)
{
    auto_scan_ = false;
    if(motor_.get())
    {
        motor_->set_auto_paper(false);
        motor_->stop();
    }

    if(camera_.get())
        camera_->stop();

    return 0;
}
int scanner_hw::close(void)
{
    img_controller_.reset();
    if(motor_.get())
    {
        motor_->stop();
        motor_.reset();
    }
    if(camera_.get())
    {
        camera_->stop();
        camera_->close();
        camera_.reset();
    }

    return 0;
}